Carbon tracking that fits the way construction works.
Waste tickets, delivery notes, fuel receipts, and subcontractor evidence captured at source, reviewed on the platform, calculated to DEFRA 2025 standards.
Start freeCommon challenges, solved.
Construction carbon data collection is fragmented. CarbonSite closes the gap between site activity and auditable reporting.
Waste tickets arrive on paper from dozens of subcontractors
Field workers photograph tickets on-site. On-device OCR extracts weight, EWC code, date, and vehicle registration in under 2 seconds. Offline queue syncs when connectivity returns.
Calculating embodied carbon across material deliveries is a manual process
Delivery notes processed through the same capture flow. Supplier evidence files attached to review tasks. Approved records feed into Scope 3 upstream transport and purchased goods categories.
Subcontractor fuel returns are inconsistent and hard to verify
Fuel receipts captured by drivers directly. OCR extracts volume, fuel type, date, and vehicle reg. The reviewer checks evidence before approving into Scope 1 mobile combustion.
Site managers need to submit data without access to the main platform
Admin sends an invite link with a 7-day expiry. The subcontractor installs the Flutter app, taps the link, sets a PIN, and is immediately in submission mode. No email/password account required.
Scope coverage for construction.
- Stationary combustion (site plant, generators)
- Mobile combustion (fleet diesel and petrol)
- Fugitive emissions (refrigerant leakage)
- Site electricity, location-based (UK grid 0.207 kgCO2e/kWh)
- Market-based where green tariff contracts exist
- Upstream transport and distribution (tipper movements)
- Purchased goods and services (spend-based)
- Business travel and commuting